Fig. 6From: Alginate-coated perlite beads for the efficient removal of methylene blue, malachite green, and methyl violet from aqueous solutions: kinetic, thermodynamic, and equilibrium studiesAdsorption isotherm. a P-MB. b AP-MB. c P-MG. d AP-MG. e. P-MV. f AP-MV (adsorption conditions: solution pH, adsorbent amount 2 g/L, contact time 120 min, and temperature, 25 ± 1 °C for P and solution pH, adsorbent amount 1 g/L, contact time 60 min, temperature 25 ± 1 °C for AP)Back to article page